Saudi Arabia has announced a new MERS death, raising to 55 the number of people killed by the coronavirus there.
A man, aged 37, died in Riyadh, the ministry of health said on its website on Sunday.
The World Health Organisation says it has been informed of 155 confirmed MERS cases worldwide so far, including 64 deaths, most of them in Saudi Arabia.
Experts are struggling to understand the disease, for which there is no vaccine. It is considered a deadlier cousin of the SARS virus that emerged in Asia in 2003 and infected 8273 people.